文献类型：期刊文献

英文题名：Performance improvement of dye-sensitizing solar cell by semi-rigid triarylamine-based donors

作者：Wang, Chengyou;Li, Jing;Cai, Shengyun;Ning, Zhijun;Zhao, Dongmei;Zhang, Qiong;Su, Jian-Hua[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2012

卷号：94

期号：1

起止页码：40

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20120514735323);WOS:【SCI-EXPANDED(收录号:WOS:000301166600007)】；

基金：This work is supported by NSFC/China, National Basic Research 973 Program (2006CB806200) and Scientific Committee of Shanghai. Wang CY thanks Prof. Hua JL, Dr. Wu. WJ, Zhang ZY, Huang XH, Zou Q and Zhang HY in our laboratory for their assistance in the experiments.

语种：英文

外文关键词：Dye-sensitized solar cell; Semi-rigid triarylamine; Synthesis; Characterization; Nanocrystalline TiO2; High efficiency

摘要：Novel organic dyes (IDB and ISB dyes), which contain 5-phenyl-iminodibenzyl (IDB) and 5-phenyl-iminostilbene (ISB) as electron donors and a cyanoacrylic acid moiety as an electron acceptor and an anchoring group, connected with a thiophene as a pi-conjugated system, have been synthesized and used as the sensitizers for dye-sensitized solar cells (DSSCs). The photophysical and electrochemical properties of the dyes were investigated by absorption spectrometry, cyclic voltammetry and density functional theory calculations. As demonstrated, the IDB and ISB unit exhibited stronger electron-donating ability and broader absorption spectra when coated onto TiO2. The DSSC based on ISB-2 consisting of ISB unit produced 5.83% of eta (J(sc) = 13.14 mA cm(-2), V-oc = 0.64 V, and ff = 0.68) under 100 mW cm(-2) simulated AM 1.5 G solar irradiation. (C) 2011 Elsevier Ltd. All rights reserved.